Compliance and Audit
In order to operate the market effectively, it's important that MOSL adheres to a number of rules and regulations, as well as ensuring that each trading party meet their obligations. All documentation can be found below - please note you will need to be logged in to view any external auditor documentation.
Market Audit: Trading Party
2024-2025
This audit, delivered in collaboration with the Consumer Council for Water, focuses on the impact of YVEs, by analysing settlement data and copies of selected bills.
| Document Name | Date Published | Author | File Download |
|---|---|---|---|
|
Statement of Work |
25 July 2024 |
MOSL |
Download |
This audit focuses on the data corrections that resulted in USRs and how to support timely and accurate settlement data.
| Document Name | Date Published | Author | File Download |
|---|---|---|---|
|
Statement of Work |
28 June 2024 |
MOSL |
Download |
This audit focuses on assuring that tariff data uploaded in CMOS is appropriate and consistent with published tariffs.
| Document Name | Date Published | Author | File Download |
|---|---|---|---|
|
Statement of Work |
25 April 2024 |
MOSL |
Download |
2017-2023
Here you will find all previous published documentation relating to earlier trading party audits
| Audit Name | Audit Description | Year of Audit | Author | Statement of Work | Initial Findings | Final Report |
|---|---|---|---|---|---|---|
|
Skip Codes Audit |
This audit focuses on the skip codes used within the market and the processes surrounding their use |
2023-2024 |
MOSL |
Published 13 October 2023 Download |
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Published 25 April 2024 Download |
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Yearly Volume Estimate (YVE) Audit |
This audit focuses on the processes surrounding the setting and maintenance of YVEs |
2023-2024 |
MOSL |
Published 19 July 2023 Download |
- |
Published 8 April 2024 Download |
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Bilateral Deferrals Audit |
This audit focuses on wholesalers using the defer option within the Bilaterals hub and looks to assure the processes are being followed correctly |
2023-2024 |
MOSL |
Published 30 June 2023 Download |
Published 23 October 2023 Download |
Published 29 February 2024 Download |
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Wholesaler Data Completeness Audit |
This audit focuses on meter and site data completeness between a wholesaler's own system and the data held in CMOS |
2023-2024 |
MOSL |
Published 1 July 2022 Download |
Published 24 February 2023 Download |
Published 12 October 2023 Download |
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Non-Market Meter Performance Audit |
This audit focuses on wholesalers performing poorly against the Non-Market Meter performance tasks |
2022-2023 |
MOSL |
Published 16 January 2023 Download |
Published 24 January 2023 Download |
Published 26 April 2023 Download |
|
Transfer Behaviours Audit |
This audit focuses on the processes surrounding the transfer of customers |
2022-2023 |
MOSL |
Published 5 December 2022 Download |
Published 12 December 2022 Download |
Published 26 April 2023 Download |
|
Retailer Data Completeness Audit |
This audit focuses on meter reading and vacancy status completness between a retailer's own billing system and the data held in CMOS |
2022-2023 |
PwC and MOSL |
- |
Published 11 January 2023 Login to download |
Published 27 March 2023 Download |
|
Retailer Data Completeness Audit |
This audit focuses on meter reading and vacancy status completeness between a retailer's own billing system and the data held in CMOS |
2022-2023 |
PwC |
- |
Published 26 September 2022 Login to download |
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| Deferred payments review - Part 2 | This audit reviews key inputs of three Retailer’s October 2020 Deferred Payments submission | 2020-2021 | PwC |
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Download |
| Deferred payments review - Part 1 | This audit reviews key inputs of three Retailer’s May, June and July 2020 Deferred Payments submission | 2020-2021 | PwC |
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Download |
| COVID-19 Temporary Vacants | This audit covers the Assurance Statements submitted by five retailers, reviewing the processes followed by each retailer to identify those premises that they had marked as temporary vacant based on key criteria outlined in CPW091. | 2020-2021 | PwC |
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Download |
| Vacants Review | This report covers a review of Vacants in the market, targeting the core 'SPID lifecycle' processes operating within companies, and bilaterally. Two wholesaler - retailer pairings were selected. | 2019-2020 | PwC |
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Download |
| OPS Review Q2 | This audit focuses on three wholesalers and reviews their performance against the OPS of most significance to market operations, and the frequency of tasks performed. | 2019-2020 | PwC |
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Download |
| OPS Review Q1 | This audit focuses on three wholesalers and reviews their performance against the OPS of most significance to market operations, and the frequency of tasks performed. | 2019-2020 | PwC |
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Download |
| PwC 2019/20 Market Audit approach | This document outlines PwCs approach to the 2019/20 market audit | 2019-2020 | PwC |
Download |
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| NHH Market Audit Report | This data led audit focuses on a variety of areas considered to be of higher risk to the market including, the meter reading processes, master data quality, switching, and CMOS configuration and alignment. | 2018-2019 | PwC |
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Download |
| NHH Market Audit Report | This audit focuses on challenging the trading parties on their ability to comply with the WRC in higher risk areas, and identifying key areas of market improvement. | 2017-2018 | PwC |
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Download |
Market Audit: Market Operator
Each year, external auditors test and report on MOSLs compliance to its obligations as set out within the Market Codes. These reports can be found below.
| Document Name | Year of Audit | Author | File Download |
|---|---|---|---|
| Review of MOSL Compliance | 2018-2019 | PwC | Download |
| Interim review of MOSL Compliance | 2019-2020 | PwC | Download |
| Review of MOSL Compliance | 2019-2020 | PwC | Download |
| Review of MOSL Compliance | 2020-2021 | PwC | Download |
| Review of MOSL Compliance | 2021-2022 | PwC | Download |
|
Review of MOSL Compliance |
2022-2023 |
PwC |
Download |
|
Review of MOSL Compliance |
2023-2024 |
PwC |
Download |
MOSL Audit: Quarterly Internal
MOSL provide quarterly reports to the Market Performance Committee (MPC) on how it is meeting its current obligations. These reports can be found below.
| Document Name | Quarter Reported | File Download |
|---|---|---|
|
Market Operator Compliance Report |
2023-2024 Q4 |
Download |
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Market Operator Compliance Report |
2023-2024 Q3 |
Download |
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Market Operator Compliance Report |
2023-2024 Q2 |
Download |
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Market Operator Compliance Report |
2023-2024 Q1 |
Download |
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Market Operator Compliance Report |
2022-2023 Q4 |
Download |
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Market Operator Compliance Report |
2022-2023 Q3 |
Download |
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Market Operator Compliance Report |
2022-2023 Q2 |
Download |
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Market Operator Compliance Report |
2022-2023 Q1 |
Download |
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Market Operator Compliance Report |
2021-2022 Q4 |
Download |
| Market Operator Compliance Report | 2020-2021 Q3 | Download |
| Market Operator Compliance Report | 2020-2021 Q2 | Download |
| Market Operator Compliance Report | 2020-2021 Q1 | Download |
| Market Operator Compliance Report | 2019-2020 Q4 | Download |
| Market Operator Compliance Report | 2019-2020 Q3 | Download |
| Market Operator Compliance Report | 2019-2020 Q2 | Download |
| Market Operator Compliance Report | 2019-2020 Q1 | Download |
| Market Operator Compliance Report | 2018-2019 Q4 | Download |
| Market Operator Compliance Report | 2018-2019 Q3 | Download |
| Market Operator Compliance Report | 2018-2019 Q2 | Download |
| Market Operator Compliance Report | 2018-2019 Q1 | Download |
| Market Operator Compliance Report | 2017-2018 Q4 | Download |